Battery charger



FIG. 1 is a top perspective view of a battery charger of the present invention;

FIG. 2 is a front view of the battery charger of the present invention;

FIG. 3 is a rear view of the battery charger of the present invention;

FIG. 4 is a top view of the battery charger of the present invention;

FIG. 5 is a bottom view of the battery charger of the present invention;

FIG. 6 is a right side view of the battery charger of the present invention; and,

FIG. 7 is a left side view of the battery charger of the present invention. 

CLAIM The ornamental design for a battery charger, as shown and described. 